NEST 50 mL Centrifuge Tube (500 count)

Introduction

Usages:

 For isolation and cultivation of Listeria monocytogenes.

Principle:

Peptone provide carbon and nitrogen sources; yeast extract powder and starch provide carbon and nitrogen sources, vitamins and growth factors; sodium chloride maintains osmotic equilibrium; glucose carbon source; agar as medium coagulant.

Formulation(per liter):

Trypsin digest of casein 10.0g

Heart trypsin digest 3.0g

Corn starch 1.0g

Pepsin digests meat 5.0g

Yeast extract powder 8.0g

Sodium chloride 5.0g

Glucose 0.5g

Mannitol 10.0g

Ferric ammonium citrate 0.5g

Esculin 0.8g

Lithium chloride 15.0g

Phenol Red 0.1g

Agar 15.0g

Storage: Keep container tightly closed, store in a cool, dry place, away from bright light. Storage period of 3 years.

250g

The NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality libraries for next generation sequencing. The kit uses intact genomic DNA (EDTA-free DNA or DNA resuspended in TE buffer) as input DNA without an additional DNA fragmentation step. Our technology provides a fast and simple workflow. DNA libraries can be generated around 2 hours with only 10 min hands-on time. Library multiplexing is possible.

NGS DNA Fragmentation & Library Prep Kit Workflow

The incorporation of DNA fragmentation in the kit makes it possible to directly use intact genomic DNA as input DNA without the need of mechanical DNA shearing or enzymatic DNA fragmentation. The NGS DNA Fragmentation & Library Prep Kit does not generate sequencing bias as compared to library using mechanical sheared DNA as input. Sequence coverage is also consistent between enzymatic shearing and mechanical shearing. The library size is inversely correlated with the incubation time of step 1 at 20°C.

Three index types are available for the kit of the illumina platform:

Non-index (Cat.# 30026): Libraries do not have index.

Index (Cat.# 30028): Each of the index primers contains a unique index sequence of 6 bases. Library multiplexing for 48 samples is possible. Index information can be downloaded here.

Unique dual index (Cat.# 30030): Library multiplexing for 96 samples is possible. With the unique features of our 4-Base Difference Index System, the index sequence is 8-base long and each index has 4 bases different from others. Our unique dual index primers effectively identify sequencing errors such as index hopping, mis-assignment of reads, and de-multiplexing errors etc. The unique dual index primers set consists of 96 pre-mixed unique pairs of  index primers. Index information can be downloaded here.

Indexes are available for the MGI platform kits (Cat.# 34028).

Kit features:

• • • 1.5-hour protocol from intact genomic DNA to NGS library
    • Intact genomic DNA as input, DNA fragmentation is not needed.
    • Works with both EDTA-free DNA and DNA resuspended in TE buffer
    • Simple workflow: Less steps
    • Guaranteed quality: Higher library conversion efficiency

Library conversion efficiency: 100 ng, 300 ng and 500 ng of intact genomic DNA were used as input.

The library size is inversely correlated with the incubation time of step 1 at 20°C.

NGS data comparison: enzymatic shearing versus mechanical shearing

Enzymatic shearing
• DNA shearing and library prep: BioDynami NGS DNA Fragmentation & Library Prep Kit
Mechanical shearing
• DNA shearing: Covaris sonication
• Library prep: BioDynami NGS DNA Library Prep Kit.

The NGS DNA Fragmentation & Library Prep Kit (illumina and MGI Platforms) was developed for construction of high quality libraries for next generation sequencing. The kit uses intact genomic DNA (EDTA-free DNA or DNA resuspended in TE buffer) as input DNA without an additional DNA fragmentation step. Our technology provides a fast and simple workflow. DNA libraries can be generated around 2 hours with only 10 min hands-on time. Library multiplexing is possible.

PC-Biotin-PEG4-PEG4-alkyne is useful for introducing a biotin moiety to azide-containing biomolecules using Cu(I)-catalyzed Click Chemistry. The extended hydrophilic spacer arm provides better solubility to the labeled molecules in aqueous media. Captured biomolecules can be efficiently photoreleased using near-UV, low intensity lamp (e.g. 365 nm lamp at 1-5 mW/cm2). Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

PC-Biotin-PEG4-PEG4-alkyne is useful for introducing a biotin moiety to azide-containing biomolecules using Cu(I)-catalyzed Click Chemistry. The extended hydrophilic spacer arm provides better solubility to the labeled molecules in aqueous media. Captured biomolecules can be efficiently photoreleased using near-UV, low intensity lamp (e.g. 365 nm lamp at 1-5 mW/cm2). Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.